I’ve gotten into tarot for a similar reason. By the time you’re done with a full celtic cross you’ve done basically all of the you side of a therapy session. If you know some of the psychotherapeutic concepts from either training or just having been a bunch you can fill in most of what a therapist would have said on the other end. There’s some things that you’d really just need a professional for anyway but it can help fill in a lot of the gaps when you would’ve needed weekly therapy for a long time and need to pick up some kind of introspective practice to be able to see the therapist less.